To be honest, I've hardly met a WO of any military that has proven themselves worthy of a 'good morning' let alone a salute.
I'd rather have a good Staff Sergeant / Flight Sergeant as my right hand man any day over a Warrant - the Staff Sergeant is still 'trying' each day, rather than feeling like he's got there, and is now going to wallow in the mistaken belief that people now think he is god.